diff options
Diffstat (limited to 'arch/blackfin/mach-common/pm.c')
| -rw-r--r-- | arch/blackfin/mach-common/pm.c | 98 |
1 files changed, 13 insertions, 85 deletions
diff --git a/arch/blackfin/mach-common/pm.c b/arch/blackfin/mach-common/pm.c index 9e7e27b7fc8d..8837be4edb4a 100644 --- a/arch/blackfin/mach-common/pm.c +++ b/arch/blackfin/mach-common/pm.c @@ -1,35 +1,11 @@ /* - * File: arch/blackfin/mach-common/pm.c - * Based on: arm/mach-omap/pm.c - * Author: Cliff Brake <cbrake@accelent.com> Copyright (c) 2001 + * Blackfin power management * - * Created: 2001 - * Description: Blackfin power management + * Copyright 2006-2009 Analog Devices Inc. * - * Modified: Nicolas Pitre - PXA250 support - * Copyright (c) 2002 Monta Vista Software, Inc. - * David Singleton - OMAP1510 - * Copyright (c) 2002 Monta Vista Software, Inc. - * Dirk Behme <dirk.behme@de.bosch.com> - OMAP1510/1610 - * Copyright 2004 - * Copyright 2004-2008 Analog Devices Inc. - * - * Bugs: Enter bugs at http://blackfin.uclinux.org/ - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see the file COPYING, or write - * to the Free Software Foundation, Inc., - * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + * Licensed under the GPL-2 + * based on arm/mach-omap/pm.c + * Copyright 2001, Cliff Brake <cbrake@accelent.com> and others */ #include <linux/suspend.h> @@ -38,6 +14,7 @@ #include <linux/io.h> #include <linux/irq.h> +#include <asm/cplb.h> #include <asm/gpio.h> #include <asm/dma.h> #include <asm/dpmc.h> @@ -170,58 +147,6 @@ static void flushinv_all_dcache(void) } #endif -static inline void dcache_disable(void) -{ -#ifdef CONFIG_BFIN_DCACHE - unsigned long ctrl; - -#if defined(CONFIG_BFIN_EXTMEM_WRITEBACK) || defined(CONFIG_BFIN_L2_WRITEBACK) - flushinv_all_dcache(); -#endif - SSYNC(); - ctrl = bfin_read_DMEM_CONTROL(); - ctrl &= ~ENDCPLB; - bfin_write_DMEM_CONTROL(ctrl); - SSYNC(); -#endif -} - -static inline void dcache_enable(void) -{ -#ifdef CONFIG_BFIN_DCACHE - unsigned long ctrl; - SSYNC(); - ctrl = bfin_read_DMEM_CONTROL(); - ctrl |= ENDCPLB; - bfin_write_DMEM_CONTROL(ctrl); - SSYNC(); -#endif -} - -static inline void icache_disable(void) -{ -#ifdef CONFIG_BFIN_ICACHE - unsigned long ctrl; - SSYNC(); - ctrl = bfin_read_IMEM_CONTROL(); - ctrl &= ~ENICPLB; - bfin_write_IMEM_CONTROL(ctrl); - SSYNC(); -#endif -} - -static inline void icache_enable(void) -{ -#ifdef CONFIG_BFIN_ICACHE - unsigned long ctrl; - SSYNC(); - ctrl = bfin_read_IMEM_CONTROL(); - ctrl |= ENICPLB; - bfin_write_IMEM_CONTROL(ctrl); - SSYNC(); -#endif -} - int bfin_pm_suspend_mem_enter(void) { unsigned long flags; @@ -258,16 +183,19 @@ int bfin_pm_suspend_mem_enter(void) bfin_gpio_pm_hibernate_suspend(); - dcache_disable(); - icache_disable(); +#if defined(CONFIG_BFIN_EXTMEM_WRITEBACK) || defined(CONFIG_BFIN_L2_WRITEBACK) + flushinv_all_dcache(); +#endif + _disable_dcplb(); + _disable_icplb(); bf53x_suspend_l1_mem(memptr); do_hibernate(wakeup | vr_wakeup); /* Goodbye */ bf53x_resume_l1_mem(memptr); - icache_enable(); - dcache_enable(); + _enable_icplb(); + _enable_dcplb(); bfin_gpio_pm_hibernate_restore(); blackfin_dma_resume(); |